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公开(公告)号：US07306338B2
公开(公告)日：2007-12-11
申请号：US11075841
申请日：2005-03-08
IPC分类号： G03B21/14
CPC分类号： H04N9/315 , G03B21/2073
摘要： An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed in either the reflected or transmitted beam. The array modulates the polarization of the beam, encoding image information thereon, and directs the modulated beam back to the beam splitter. The beam splitter again reflects one polarization and transmits the other so that the encoded image is either reflected or transmitted to a screen. The wire grid polarizing beam splitter is capable of being oriented at various incident angles with respect to the source light beam and modulated beam, and accepts relatively divergent light.
摘要翻译： 图像投影系统具有线偏振光束分离器，其作为系统中的偏振器和分析仪。 光源产生指向分束器的源光束，其反射一个偏振并透射另一个偏振光。 液晶阵列设置在反射或透射光束中。 阵列调制光束的极化，对其上的图像信息进行编码，并将调制的光束引导回分束器。 分束器再次反射一个偏振并且透射另一个偏振，使得编码图像被反射或传输到屏幕。 线栅偏振分束器能够相对于源光束和调制光束以各种入射角定向，并且接受相对发散的光。
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22.发明授权Broad band wire grid polarizing beam splitter for use in the visible wavelength region 有权用于可见波长区域的宽带线栅偏振分束器公开(公告)号：US06243199B1
公开(公告)日：2001-06-05
申请号：US09390833
申请日：1999-09-07
IPC分类号： G02B2728
CPC分类号： G02B5/3058 , Y10S359/90
摘要： A wire grid polarizing beam splitter has a generally parallel arrangement of thin, elongated elements which interact with electromagnetic waves of a source light beam to generally transmit or pass light of one polarization, and reflect light of the other polarization. The arrangement of elements has a throughput greater than approximately 50%, and an extinction greater than approximately 100. In addition, the arrangement of elements has a period less than approximately 0.21 &mgr;m, and a width to period ratio of between approximately 0.25 to 0.76. The elements have a thickness of between approximately 0.05 to 0.5 &mgr;m.
摘要翻译： 线栅偏振分束器具有与源光束的电磁波相互作用的薄的细长元件的大致平行布置，以一般透射或通过一个偏振的光，并且反射另一个极化的光。 元素的布置具有大于约50％的吞吐量，大于约100的消光。此外，元件的布置具有小于约0.21μm的周期，以及约0.25至0.76之间的宽度与周期比。 元件的厚度介于约0.05至0.5μm之间。
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公开(公告)号：US20080055719A1
公开(公告)日：2008-03-06
申请号：US11469210
申请日：2006-08-31
申请人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
发明人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
CPC分类号： G02B5/3058
摘要： An inorganic, dielectric grid polarizer device includes a stack of film layers disposed over a substrate. Each film layer is formed of a material that is both inorganic and dielectric. Adjacent film layers each have different refractive indices. At least one of the film layers is discontinuous to form a form birefringent layer with an array of parallel ribs having a period less than 400 nm.
摘要翻译： 无机介电栅极偏振器装置包括设置在基板上方的一层薄膜层。 每个膜层由无机和电介质的材料形成。 相邻的膜层各自具有不同的折射率。 至少一个膜层是不连续的以形成具有周期小于400nm的平行肋阵列的形式双折射层。
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公开(公告)号：US06447120B2
公开(公告)日：2002-09-10
申请号：US09862183
申请日：2001-05-21
IPC分类号： G03B2114
CPC分类号： G02B27/283 , G02B5/3058 , G03B21/14 , G03B21/2073
摘要： An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed in either the reflected or transmitted beam. The array modulates the polarization of the beam, encoding image information thereon, and directs the modulated beam back to the beam splitter. The beam splitter again reflects one polarization and transmits the other so that the encoded image is either reflected or transmitted to a screen. The beam splitter can be an embedded wire grid polarizer with an array of parallel, elongated, spaced-apart elements sandwiched between first and second layers. The elements form a plurality of gaps between the elements which provide a refractive index less than the refractive index of the first or second layers.
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公开(公告)号：US06234634B1
公开(公告)日：2001-05-22
申请号：US09363256
申请日：1999-07-28
IPC分类号： G03B2114
CPC分类号： G02B27/283 , G02B5/3058
摘要： An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed in either the reflected or transmitted beam. The array modulates the polarization of the beam, encoding image information thereon, and directs the modulated beam back to the beam splitter. The beam splitter again reflects one polarization and transmits the other so that the encoded image is either reflected or transmitted to a screen. The wire grid polarizing beam splitter is capable of being oriented at various incident angles with respect to the source light beam and modulated beam, and accepts relatively divergent light.
摘要翻译： 图像投影系统具有线偏振光束分离器，其作为系统中的偏振器和分析仪。 光源产生指向分束器的源光束，其反射一个偏振并透射另一个偏振光。 液晶阵列设置在反射或透射光束中。 阵列调制光束的极化，对其上的图像信息进行编码，并将调制的光束引导回分束器。 分束器再次反射一个偏振并且透射另一个偏振，使得编码图像被反射或传输到屏幕。 线栅偏振分束器能够相对于源光束和调制光束以各种入射角定向，并且接受相对发散的光。
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26.发明授权公开(公告)号：US08027087B2
公开(公告)日：2011-09-27
申请号：US12879315
申请日：2010-09-10
IPC分类号： G02B5/30
CPC分类号： G02B5/3058
摘要： A wire-grid polarizer includes a wire-grid layer disposed over a substrate. A plurality of contiguous dielectric-grid layers are contiguous with one another and disposed directly on top of the wire-grid layer. The plurality of contiguous dielectric-grid layers includes different materials with different indices of refraction. The array of dielectric material elements and the array of metal elements are oriented substantially parallel with one another, and the arrays having substantially equal periods.
摘要翻译： 线栅偏振器包括设置在基板上的线栅层。 多个连续的电介质栅格层彼此邻接并且直接设置在线栅层的顶部上。 多个连续的电介质栅格层包括具有不同折射率的不同材料。 电介质材料元件阵列和金属元件阵列彼此基本平行地定向，并且阵列具有基本相同的周期。
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27.发明授权公开(公告)号：US07813039B2
公开(公告)日：2010-10-12
申请号：US12400100
申请日：2009-03-09
IPC分类号： G02B5/18
CPC分类号： G02B5/3058
摘要： A multilayer wire-grid polarizer for polarizing light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having lengths longer than a wavelength of the light and a period less than half the wavelength of the light. One of the layers can include a thin film layer with a refractive index greater than a refractive index of the substrate. One of the thin film layers can include a dielectric array of non-metal elements.
摘要翻译： 用于偏振光的多层线栅偏振器包括设置在衬底上的薄层层叠，包括具有比光的波长长的长度的细长金属元素的线栅阵列和小于所述光的波长的一半的周期 光。 层中的一个可以包括折射率大于衬底的折射率的薄膜层。 薄膜层之一可以包括非金属元素的电介质阵列。
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28.发明申请Optical Polarization Beam Combiner/Splitter with an Inorganic, Dielectric Grid Polarizer 审中-公开光学偏振光束组合器/分离器与无机，电介质网格偏振器公开(公告)号：US20080055722A1
公开(公告)日：2008-03-06
申请号：US11469266
申请日：2006-08-31
申请人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
发明人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
CPC分类号： G02B5/3008 , G02B27/283
摘要： An optical polarization beam combiner or separator device includes a first optical beam carrier for carrying a first polarized beam and a second optical beam carrier for carrying a second polarized beam whose polarization is orthogonal to the polarization of the first polarized beam. First and second collimating/focusing lenses are positioned between the first and second optical carriers. A third optical beam carrier for carrying a non-polarized beam positioned on the same side of the two collimating/focusing lenses as the first optical beam carrier. An inorganic, dielectric grid polarizer is disposed between the first and second collimating/focusing lenses, and includes a stack of film layers disposed over a substrate. Adjacent film layers have different refractive indices. At least one of the film layers is discontinuous to form a form birefringent layer with an array of parallel ribs with a pitch of less than 400 nm, and greater than 200 nm.
摘要翻译： 光偏振束组合器或分离器装置包括用于承载第一偏振光束的第一光束载体和用于承载偏振与第一偏振光束的偏振正交的第二偏振光束的第二光束载体。 第一和第二准直/聚焦透镜位于第一和第二光学载体之间。 用于承载位于两个准直/聚焦透镜的同一侧上的非偏振光束作为第一光束载体的第三光束载体。 无机介电栅极偏振器设置在第一和第二准直/聚焦透镜之间，并且包括设置在基板上方的一层薄膜层。 相邻的膜层具有不同的折射率。 膜层中的至少一层是不连续的，以形成具有间距小于400nm，大于200nm的平行肋阵列的形式双折射层。
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29.发明申请公开(公告)号：US20080055721A1
公开(公告)日：2008-03-06
申请号：US11469253
申请日：2006-08-31
申请人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
发明人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
IPC分类号： G02B5/30
CPC分类号： G02B5/3008 , G02B27/283
摘要： A light recycling system includes a light source capable of producing a visible light beam. An inorganic, dielectric grid polarizing beam splitter is disposable in the light beam to separate the light beam into two light beams of orthogonal polarization orientation including a transmitted beam and a reflected beam. The grid polarizer includes a stack of film layers disposed over the substrate. Each film layer is formed of a material that is both inorganic and dielectric. Adjacent film layers have different refractive indices. At least one of the film layers is discontinuous to form a form birefringent layer with an array of parallel ribs with a period less than approximately 260 nm. Light reorientation means is disposable in the transmitted or reflected beam for changing the polarization orientation of the transmitted or reflected beam.
摘要翻译： 光回收系统包括能产生可见光束的光源。 无机介电栅极偏振分束器在光束中是一次性的，以将光束分离成包括透射束和反射光束的正交偏振取向的两个光束。 栅极偏振器包括设置在衬底上的一层薄膜层。 每个膜层由无机和电介质的材料形成。 相邻的膜层具有不同的折射率。 至少一个膜层是不连续的以形成具有周期小于约260nm的平行肋阵列的形式双折射层。 光重新定向装置在透射或反射光束中是一次性的，用于改变透射或反射光束的偏振取向。
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公开(公告)号：US20080055549A1
公开(公告)日：2008-03-06
申请号：US11469226
申请日：2006-08-31
申请人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
发明人： Raymond T. Perkins , Bin Wang , Eric Gardner , Douglas P. Hansen
IPC分类号： G03B21/14
CPC分类号： G03B33/12 , G03B21/008 , G03B21/2073
摘要： A projection display or modulation optical system includes a spatial light modulator and an inorganic, dielectric grid polarizer. The spatial light modulator selectively encodes image information on a polarized incident light beam and the inorganic, dielectric grid polarizing beam splitter separates the image information from the beam and produces a polarized image bearing light beam. The grid polarizer includes a stack of film layers disposed over a substrate; each film layer being formed of a material that is both inorganic and dielectric; adjacent film layers having different refractive indices; and at least one of the film layers being discontinuous to form a form birefringent layer with an array of parallel ribs with a period less than approximately 260 nm.
摘要翻译： 投影显示或调制光学系统包括空间光调制器和无机介质栅偏振器。 空间光调制器对偏振入射光束上的图像信息进行选择性编码，无机介质栅极偏振分束器将图像信息与光束分离，并产生带偏振图像的光束。 栅极偏振器包括设置在衬底上的膜层的堆叠; 每个膜层由无机和电介质的材料形成; 相邻的膜层具有不同的折射率; 并且至少一个膜层是不连续的以形成具有周期小于约260nm的平行肋阵列的形式双折射层。
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